import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNextLine()) {
            String line = sc.nextLine();
            String[] s = line.split(" ");
            System.out.println(s[s.length-1].length());
        }
        sc.close();
    }

}
